nB(2)F(WS)
|
|
P |
Q |
R
|
S
|
T
|
v
|
|
QO˖
|
S
|
R
|
R
|
S
|
R
|
PV
|
|
SO˖
|
S
|
S
|
S
|
R
|
S
|
PX
|
|
UO˖
|
S
|
S
|
R
|
S
|
R
|
PW
|
|
WO˖
|
S
|
R
|
R
|
Q
|
R
|
PT
|
|
POO˖
|
R
|
R
|
S
|
Q
|
R
|
PT
|
|
v
|
WS
|
|||||
@
acI (3)FiVTj
P | Q | R | S | T | v | |
| QO˖ |
Q
|
R
|
S
|
R
|
S
|
PU
|
| SO˖ |
R
|
R
|
R
|
Q
|
S
|
PT
|
| UO˖ |
R
|
Q
|
R
|
R
|
S
|
PT
|
| WO˖ |
S
|
Q
|
R
|
Q
|
S
|
PT
|
| POO˖ |
Q
|
Q
|
Q
|
S
|
S
|
PS
|
| v |
VT
| |||||
@